New " standard of sanitation of life drinking water " GB5749- project is unscram
From;    Author:Stand originally
Keyword: Ammoniac amine sanitation standard drinking water

Alias: Chloramide; Chloramine; Chloramine/chlorine; Monochloramide; Monochloroamine; Monochloramine? Monochloroammonia;






Using Chloramine To Disinfect Drinking Water Is A Common Standard Practice Among Drinking Water Utilities. A Number Of Utilities Have Made This Switch From Chlorine To Chloramines To Enhance Water Safety And Compliance With Drinking Water Health Standards.

Background Information On Chloramines

Chlorine Has Been Safely Used For More Than 100 Years For Disinfection Of Drinking Water To Protect Public Health From Diseases Which Are Caused By Bacteria, viruses And Other Disease Causing Organisms. Chloramines, the Monochloramine Form In Particular, have Also Been Used As A Disinfectant Since The 1930's. Chloramines Are Produced By Combining Chlorine And Ammonia. While Obviously Toxic At High Levels, neither Pose Health Concerns To Humans At The Levels Used For Drinking Water Disinfection.

Chloramines Are Weaker Disinfectants Than Chlorine, but Are More Stable, thus Extending Disinfectant Benefits Throughout A Water Utility's Distribution System. They Are Not Used As The Primary Disinfectant For Your Water. Chloramines Are Used For Maintaining A Disinfectant Residual In The Distribution System So That Disinfected Drinking Water Is Kept Safe. Chloramine Can Also Provide The Following Benefits:

  • Since Chloramines Are Not As Reactive As Chlorine With Organic Material In Water, they Produce Substantially Lower Concentrations Of Disinfection Byproducts In The Distribution System. Some Disinfection Byproducts, such As The Trihalomethanes (THMs) And Haloacetic Acids (HAAs) , may Have Adverse Health Effects At High Levels. These Disinfection Byproducts Are Closely Regulated By EPA. EPA Recently Reduced The Allowable Maximum Contaminant Levels For Total THMs To 80 Ug/L And Now Limit HAAs To 60 Ug/L. The Use Of Chlorine And Chloramines Is Also Regulated By The EPA. We Have Maximum Residual Disinfectant Levels Of 4.0 Mg/L For Both These Disinfectants. However, our Concern Is Not From Their Toxicity, but To Assure Adequate Control Of The Disinfection Byproducts.
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